The Wayback Machine - https://web.archive.org/web/20150927005511/http://boingboing.net/2005/02/06/shmoo-group-exploit.html

Shmoo Group exploit: 0wn any domain, no defense exists

Pablos sez, "Shmoocon ended today. And just to prove The Shmoo Group wasn't sitting on their asses for the entire time while planning the con - A new exploit was demo'd by EricJ that left all jaws our on the floor. Want to own ANY domain? Want a trusted SSL cert for it? Check it out here. We 0wnz0rd PayPal, but left the rest for you. We have no idea how to fix this and neither do the browser developers. Official advisory here. Phishing attacks of doom coming soon." Link (Thanks, Pablos!)

Update: Chris Smith sez,

1) Goto your Firefox address bar. Enter about:config and press enter. Firefox will load the (large!) config page.

2) Scroll down to the line beginning network.enableIDN -- this is International Domain Name support, and it is causing the problem here. We want to turn this off -- for now. Ideally we want to support international domain names, but not with this problem.

3) Double-click the network.enableIDN label, and Firefox will show a dialog set to 'true'. Change it to 'false' (no quotes!), click Ok. You are done.

4) Go check out the shmoo demo again and notice it no longer works.

Update 2: J Brad Hicks sez, "Contrary to the update you just posted, setting network.enableIDN to false did not fix the problem for me in FireFox 1.0, aka Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0. Not even after quitting the application and re-launching it."

Update 3: Glenn sez, "I had the same problem in the same browser until I used Tools/Options/Privacy to clear the browser's cache. After clearing the cache, the network.enableIDN setting *does* appear to prohibit the exploit."

Update 4: Salim sez, "It seems that Firefox 1.0 is vulnerable despite applying the network.enableIDN fix. It works initially, but when the browser is restarted, the idn feature kicks into life again."

Update 5:Scott sez, "I've done a simple hack to Firefox to make it stick. My how-to is here."

/ / COMMENTS